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Explain Protoderm in primary growth in shoot?
The protoderm is one of the so-called "primary tissues" because it is formed first during germination and subsequent bud growth and development. The protoderm produces new cells on the surface of the apical meristem, and these surface cells migrate downward and mature into the epidermis of the shoot and leaves.
The epidermal layer provides physical protection for the other internal tissues, and most importantly, guards against drying out. The epidermis produces an outer waxy coating from a substance known as cutin. This cuticle layer prevents evaporative water loss. However, leaves need carbon dioxide and they need to get rid of oxygen, so they provide openings for this gas exchange through special cells called guard cells. Two guard cells make up a functional unit, whose scientific name is stomata, or stomate.
Adenosine triphosphate (ATP) is a general form in which the energy is stored in living systems; comprises of a nucleotide (with ribose sugar) with three phosphate groups. Energy c
An osteoclast is a type of bone cell that absorbs bone tissue by removing its mineralized matrix and breaking up the organic bone. This process is known as bone resorption
The Father of Botany (370-285 B.C.); of all the men who ever lived upon the earth certainly one of the most remarkable was Theophrastus of Eresus who was born about 370 B.C. on the
Q. Learning objectives of gastrointestinal disease? • explain the disease conditions, causes, complications of the disorders of the gastrointestinal tract, • discuss the ef
VACUOLES Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells
Q. What are the pancreatic tissues involved respectively in the endocrine and exocrine secretions? What are their respective hormones and enzymes? The exocrine secretion of the
Characteristics of Thick Gingiva Relatively flat soft tissue and bony architecture Dense fibrotic soft tissue Relatively large amount of attached gingiva Thick und
If a diploid sperm fertilized a haploid egg, what would the result be? a.Haploid (n) b.Diploid (2n) c.A mixture of diploid (2n) and haploid (n) d.Triploid (3n)
Visual Field Examination Russel et. al include a formal visual field examination using a parameter as part of their assessment procedure. Tests in the expanded version include
Zearalenone It was first isolated as the agent responsible for vulvovaginitis in pigs has very little acute toxicity, but there should be some concern about chronic exposure t
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